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      05-12-2011, 07:14 PM   #4
DataStream18
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Drives: 2003 ESS TS1 Z4
Join Date: May 2011
Location: Muskegon, Mi

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To be honest you wont feel or notice a power increase, gas mileage was improved but nothing to write home about. It just allows more air to flow more free into the intake channel/plenum. Now if you have a CAI then you will notice a little more of both, but again, its not a huge gain!
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